I really really really want to run Sam at the track
Rick-
Chances are the gains were all in your head. 100 octane is no benefit to a 10.5:1 compression motor. 91-92 should be the max for optimal performance. On cold days you could even get away with 89. Built early model muscle cars need high-test because they have high compression ratios and combustion chambers designed for leaded gas. Combustion chambers have come a long way since the late 60s. The Integra Type R has a massive 11.5:1 (one the highest I've seen) compression ratio yet runs fine on 91-92 octane. An old musclecar with that kind of ratio would require 100+ just to run!!!!
IMO, save your money, O2 sensors, and cat. Focus on better driving.
Dave
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black 96 Maxima SE
14.73@94mph, 2.25 60'
Mods? 175 fwhp/193 fwtq
